Development of Adaptable Cell LA-ICP-MS and Support for External Collaborations in the Elemental Analysis Facility at The Field Museum

开发适应性单元 LA-ICP-MS 并支持菲尔德博物馆元素分析设施的外部合作

• 批准号: 0818401
• 负责人: Laure Dussubieux
• 金额: $ 17.73万
• 依托单位: Field Museum of Natural History
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0818401&HistoricalAwards=false
• 关键词: Development; Adaptable; Cell; LA; ICP

With support from the National Science Foundation, Drs. Laure Dussubieux and Ryan Williams of the Elemental Analysis Facility at the Field Museum will expand the services of the laboratories to a wide range of archaeological scholars. The facility includes a scanning electron microscope with an energy dispersive spectrometer (SEM-EDS), and an inductively coupled plasma mass spectrometer (ICP-MS). The ICP-MS can be fitted with two lasers. One of the lasers is dedicated to the sampling of small objects with a high throughput, whereas the second laser, a totally unique, custom-transformed apparatus, accommodates large objects. This equipment was complemented by the recent acquisition of two portable XRF instruments for totally non-invasive investigations of artifacts on the premises of the Museum or in the field. The facility is used to determine the composition, including major, minor, and trace elements, of a large range of materials in a non-destructive manner to address questions related to the archaeology of cultural production, interaction and exchange in the Americas, Africa, Oceania, Europe, and Asia and advancing the cause of material conservation of The Field Museums reknowned anthropology collections.The elemental analysis facility serves the Field Museum community as well as scholars and students from the Chicago area, the Midwest and throughout the world. This project will develop our interaction with outside scientists to attract high profile collaborative projects by offering financial support to offset travel and accommodation expenses as well as a subvention of analytical costs. The laboratory provides a unique training opportunity for students. They are initiated into the analytical process by undertaking the analysis itself and are trained in method development, the statistical processing of the data, and interpretation. The acquisition of a laser system with an adaptable cell will extend the range of artifacts possible to analyze to whole specimens and reduce the risk of biased samples that a selection of only small objects could introduce. The presence of an on-site laboratory at the Field Museum creates the opportunity to study artifacts from the unique collections of the museum that could not be moved easily to outside analytical facilities. The intellectual merits of the project include the establishment of extensive new datasets of archaeological and ethnological material from around the world that directly informs hypotheses about ancient trade and exchange, technology, and their relationship to the development of social complexity around the world. By sharing our expertise for the investigation of ancient material and linking leading scholars and graduate students to the museums extensive collections and giving them the tools to analyze these one of a kind assemblages, the project will significantly enhance understanding of the role of cultural production in the development of complex societies.The broader impacts of the research include student training and public education. This project integrates research and training of undergraduate and graduate students. Results of this research will inform future exhibits and education activities of the institution, which educate hundreds of thousands of school children and millions of visitors annually. We will focus our efforts in developing the use of laser ablation ICP-MS to investigate new materials and new issues as long as it helps us addressing important questions related to cultural and technological interaction and exchange.

在国家科学基金会的支持下，菲尔德博物馆元素分析设施的Laure Dussubieux博士和Ryan Williams博士将把实验室的服务扩展到广泛的考古学者。该设施包括带有能量色散光谱仪的扫描电子显微镜(SEM-EDS)和电感耦合等离子体质谱仪(ICP-MS)。电感耦合等离子体质谱可配备两个激光器。其中一个激光器致力于以高吞吐量对小物体进行采样，而第二个激光器是一种完全独特的、定制的设备，可以容纳大物体。最近购买了两台便携式XRF仪器，对博物馆内或实地的文物进行完全非侵入性的调查，补充了这一设备。该设施用于以非破坏性的方式确定大量材料的组成，包括主要、次要和微量元素，以解决与美洲、非洲、大洋洲、欧洲和亚洲的文化生产、互动和交流的考古学相关的问题，并推动菲尔德博物馆著名人类学收藏品的材料保护事业。元素分析设施服务于菲尔德博物馆社区以及来自芝加哥地区、中西部和世界各地的学者和学生。这个项目将发展我们与外部科学家的互动，通过提供财政支持来抵消旅行和住宿费用以及分析费用，以吸引高知名度的合作项目。该实验室为学生提供了一个独特的培训机会。他们通过进行分析本身进入分析过程，并接受方法开发、数据统计处理和解释方面的培训。具有自适应单元的激光系统的获取将把可能分析的人工制品的范围扩展到整个样本，并降低仅选择小对象可能引入的有偏样本的风险。菲尔德博物馆有一个现场实验室，为研究博物馆独特藏品中的文物创造了机会，这些文物不能轻易转移到外部分析设施。该项目的学术价值包括建立了来自世界各地的考古和民族学材料的广泛新数据库集，直接提供关于古代贸易和交流、技术及其与世界各地社会复杂性发展的关系的假设。通过分享我们研究古代材料的专业知识，并将知名学者和研究生与博物馆的广泛收藏品联系起来，并为他们提供分析这类集合的工具，该项目将显著增强对文化生产在复杂社会发展中的作用的理解。研究的更广泛影响包括学生培训和公共教育。该项目将本科生和研究生的研究和培养融为一体。这项研究的结果将为该机构未来的展览和教育活动提供信息，每年教育数十万学童和数百万参观者。只要激光消融电感耦合等离子体质谱有助于我们解决与文化和技术互动和交流有关的重要问题，我们将集中努力开发激光消融电感耦合等离子体质谱来研究新材料和新问题。